function getDirectories(){
    $contenido=scandir($this->ruta);
    $directories=[];
    foreach ($contenido as $dir) {
         var_dump($dir);
         var_dump(filetype($dir));
        if(filetype($dir)=='dir' && (!$dir=='.'|| !$dir=='..')){
            $directories[]=$dir;
          }
    }
    $this->directories=$directories;
    return  $directories;
}